>What was the most frustrating moment or aspect?
Navigation. I found the path forward confusing, from the narrow view you have of your immediate surroundings in the play area to the collectables that appear to be on paths you cannot reach and cannot suck up with a vortex. I ultimately died to a spiked ball that descended from offscreen and hit me before I knew what was happening.
>What was your favorite moment or aspect?
Movement and making vortexes to suck up groups of collectables was enjoyable.
>Was there anything you wanted to do, but couldn't?
I wanted to know where the high and low boundaries where so I could get a better idea of the area within which I should explore for pickups, but it seemed like I could travel completely out of the range of collectables without much effort.
>If you could change, add, or remove any 1 thing, what would it be?
I would reduce all of the open space in levels, the number of gems needed, or let the vortexes suck up all the collectable types instead of just gems. Getting multipliers for stringing together pickups might be engaging, but not sure if that fits the laid-back tone of what the game is now.